320144484 has 24 divisors (see below), whose sum is σ = 814913568. Its totient is φ = 97013440.

The previous prime is 320144483. The next prime is 320144501. The reversal of 320144484 is 484441023.

It is not an unprimeable number, because it can be changed into a prime (320144483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1212537 + ... + 1212800.

It is an arithmetic number, because the mean of its divisors is an integer number (33954732).

Almost surely, 2^320144484 is an apocalyptic number.

It is an amenable number.

320144484 is an abundant number, since it is smaller than the sum of its proper divisors (494769084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320144484 is a wasteful number, since it uses less digits than its factorization.

320144484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425355 (or 2425353 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 320144484 is about 17892.5818148192. The cubic root of 320144484 is about 684.0933065831.

The spelling of 320144484 in words is "three hundred twenty million, one hundred forty-four thousand, four hundred eighty-four".